html,body{
    width: 100%;
    height: 100%;
    background: #fff;
}
*{
    padding: 0;
    margin: 0;
}
.wrap{
    width: 1200px;
    margin: 0 auto;

}
.mt10{
    margin-top: 10px;
}
.mt40{
    margin-top: 40px;
}
.mt60{
    margin-top: 60px;
}
.fl{
    float: left;
}
.fr{
    float: right;
}
.clearfix::after{
    display: block;
    content: "";
    clear: both;
}
.pad5{
    padding: 0px 5px;
}
img{
    /* 去掉图片底部三相数 */
    vertical-align: middle;
}
